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I'd like to read data from a .grd file, made by Oasis Geosoft Montaj.

There is a free viewer that can convert to an ascii file, that can be read in e.g. QGIS, but the viewer program only works in Windows.

Are there any options to import Geosoft grids on a Mac? Preferable free, open source.

(It is not the same format as e.g. GMT .grd, which is a kind of netCDF.)

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According to http://osgeo-org.1560.x6.nabble.com/Geosoft-Grid-Files-td5278481.html and https://trac.osgeo.org/gdal/ticket/4887 there is no chance since the format is propietary.

You might try a virtual box with Windows (or Linux+wine) OS to get the viewer running.

  • I think you are right, unfortunately. Will give the question a few before accepting this answer. Just in case... – Tactopoda Nov 23 '18 at 1:06

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